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28043126 = 2192273251
BaseRepresentation
bin110101011111…
…0011101110110
31221202201221022
41222332131312
524134340001
62441021142
7460235246
oct152763566
957681838
1028043126
1114914241
1294847b2
135a6b387
143a1db26
1526de11b
hex1abe776

28043126 has 16 divisors (see below), whose sum is σ = 44487360. Its totient is φ = 13221000.

The previous prime is 28043117. The next prime is 28043129. The reversal of 28043126 is 62134082.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28043095 and 28043104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28043129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7001 + ... + 10251.

It is an arithmetic number, because the mean of its divisors is an integer number (2780460).

Almost surely, 228043126 is an apocalyptic number.

28043126 is a deficient number, since it is larger than the sum of its proper divisors (16444234).

28043126 is a wasteful number, since it uses less digits than its factorization.

28043126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 28043126 is about 5295.5760781996. The cubic root of 28043126 is about 303.8147171400.

The spelling of 28043126 in words is "twenty-eight million, forty-three thousand, one hundred twenty-six".

Divisors: 1 2 19 38 227 454 3251 4313 6502 8626 61769 123538 737977 1475954 14021563 28043126